Legal claims defining the scope of protection, as filed with the USPTO.
1. An apparatus for wireless transmission in HRPD communication that supports spatial techniques, determines time frequency resources available for OFDM and excludes time frequency resources used for traffic data and signaling sent with CDM, comprising: a) at least one processor to: determine time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) using a slot structure that is backward compatible with existing terminals; assign the time frequency resources available for OFDM to at least one terminal and exchanges data with each terminal via the time frequency resources assigned to that terminal; partitions the time frequency resources available for OFDM into multiple tiles, each tile corresponding to a block of tile frequency resources; assign at least one of the multiple tiles to at least one terminal; process OFDM symbols based on multiple OFDM symbol numerologies used in a traffic interval in HRPD to embed OFDM data in an HRPD waveform for each tile assigned to the at least one terminal; and b) a memory coupled to the at least one processor.
2. The apparatus of claim 1 , wherein each tile corresponds to a block of time frequency resources having a non-rectangular shape.
3. The apparatus of claim 1 , wherein the at least one processor partitions the time frequency resources available for OFDM into multiple tiles of at least two different non-rectangular shapes.
4. The apparatus of claim 3 , wherein two of the different non-rectangular shapes have mirror symmetry.
5. The apparatus of claim 4 , wherein the two different non-rectangular shapes with mirror symmetry are associated with pilot patterns with mirror symmetry.
6. The apparatus of claim 1 , wherein the at least one processor processes OFDM symbols based on multiple OFDM symbol numerologies for each tile assigned to the at least one terminal.
7. The apparatus of claim 1 , wherein each tile includes a first section of time frequency resources defined based on a first OFDM symbol numerology and a second section of time frequency resources defined based on a second OFDM symbol numerology.
8. The apparatus of claim 7 , wherein each tile further includes a third section of time frequency resources defined based on the first OFDM symbol numerology, the second section being located between the first and third sections.
9. The apparatus of claim 1 , wherein the at least one processor assigns each terminal different ones of the multiple tiles over time to achieve frequency hopping.
10. The apparatus of claim 1 , wherein the at least one processor selects a pilot pattern for each terminal from among multiple pilot patterns.
11. The apparatus of claim 10 , wherein the multiple pilot patterns support at least two different delay spreads, and wherein the at least one processor selects the pilot pattern for each terminal based on an expected delay spread for the terminal.
12. The apparatus of claim 10 , wherein the multiple pilot patterns support at least two different spatial ranks, and wherein the at least one processor selects the pilot pattern for each terminal based on a spatial rank for the terminal.
13. The apparatus of claim 10 , wherein each of the multiple pilot patterns includes multiple clusters of pilot tones placed across a tile corresponding to a block of time frequency resources, each pilot tone corresponding to one subcarrier in one symbol period used for pilot.
14. The apparatus of claim 13 , wherein the multiple clusters of pilot tones for each pilot pattern are placed in at least two frequency locations across the tile.
15. The apparatus of claim 13 , wherein the multiple clusters of pilot tones for each pilot pattern are placed in at least two time locations across the tile.
16. The apparatus of claim 1 , wherein the at least one processor sends a common pilot across the time frequency resources available for OFDM.
17. The apparatus of claim 1 , wherein the at least one processor sends data to each terminal on the at least one tile assigned to the terminal and sends pilot to each terminal on the at least one tile and based on a pilot pattern selected for the terminal.
18. The apparatus of claim 1 , wherein the at least one processor receives data from each terminal on the at least one tile assigned to the terminal and receives pilot from each terminal on the at least one tile and based on a pilot pattern selected for the terminal.
19. A wireless transmission method in HRPD communication that supports spatial techniques, determines time frequency resources available for OFDM and excludes time frequency resources used for traffic data and signaling sent with CDM comprising: determining time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM)using a slot structure that is backward compatible with existing terminals; and assigning the time frequency resources available for OFDM to at least one terminal.
20. The method of claim 19 , wherein the assigning the time frequency resources available for OFDM comprises partitioning the time frequency resources available for OFDM into multiple tiles, each tile corresponding to a block of time frequency resources, and assigning at least one of the multiple tiles to each of the at least one terminal.
21. The method of claim 20 , further comprising: processing OFDM symbols based on multiple OFDM symbol numerologies for each tile assigned to the at least one terminal.
22. The method of claim 19 , further comprising: selecting a pilot pattern for each terminal from among multiple pilot patterns.
23. An apparatus for wireless transmission in HRPD communication that supports spatial techniques, determines time frequency resources available for OFDM and excludes time frequency resources used for traffic data and signaling sent with CDM comprising: means for determining time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) using a slot structure that is backward compatible with existing terminals; and means for assigning the time frequency resources available for OFDM to at least one terminal.
24. The apparatus of claim 23 , wherein the means for assigning the time frequency resources available for OFDM comprises means for partitioning the time frequency resources available for OFDM into multiple tiles, each tile corresponding to a block of time frequency resources, and means for assigning at least one of the multiple tiles to each of the at least one terminal.
25. The apparatus of claim 24 , further comprising: means for processing OFDM symbols based on multiple OFDM symbol numerologies for each tile assigned to the at least one terminal.
26. The apparatus of claim 23 , further comprising: means for selecting a pilot pattern for each terminal from among multiple pilot patterns.
27. A processor readable, non-transitory, tangible, storage media for storing instructions, to cause a processor to perform the following steps: determine time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) using a slot structure that retains backward compatibility for existing terminals; and assign the time frequency resources available for OFDM to at least one terminal.
28. The processor readable media of claim 27 , and further for storing instructions to: select a pattern for each terminal from among multiple pilot patterns.
29. An apparatus for wireless transmission in HRPD communication that supports spatial techniques, determines time frequency resources available for OFDM and excludes time frequency resources used for traffic data and signaling sent with CDM comprising: assign the time frequency resources available for OFDM to at least one terminal and exchanges data with each terminal via the time frequency resources assigned to that terminal; at least one processor to receive the assignment of time frequency resources selected from time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) using a slot structure that is backward compatible with existing terminals, and to exchange data via the time frequency resources in the assignment; and a memory coupled to the at least one processor.
30. The apparatus of claim 29 , wherein the assignment is for a block of time frequency resources having a non-rectangular shape.
31. The apparatus of claim 29 , the at least one processor processes OFDM symbols based on multiple OFDM symbol numerologies to exchange data via the time frequency resources in the assignment.
32. The apparatus of claim 29 , wherein the at least one processor processes pilot symbols based on a pilot pattern selected from among multiple pilot patterns.
33. The apparatus of claim 32 , wherein the pilot pattern includes multiple clusters of pilot tones placed across a tile corresponding to the time frequency resources in the assignment, and wherein the at least one processor sends at least one pilot symbol from at least one antenna on at least one pilot tone in each of the multiple clusters, one pilot symbol from each antenna in each cluster.
34. The apparatus of claim 32 , wherein the pilot pattern includes multiple clusters of pilot tones placed across a tile corresponding to the time frequency resources in the assignment, and wherein the at least one processor sends at least one pilot symbol for at least one data stream in each of the multiple clusters, each pilot symbol being spread across all pilot tones in a cluster with an orthogonal code.
35. A wireless transmission method comprising: assigning the time frequency resources available for OFDM to at least one terminal and exchanges data with each terminal via the time frequency resources assigned to that terminal; receiving the assignment of time frequency resources selected from time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) that utilizes a slot structure that retains backward compatibility with existing terminals; and exchanging data via the time frequency resources in the assignment.
36. The method of claim 35 , wherein the exchanging data comprises processing OFDM symbols based on multiple OFDM symbol numerologies to exchange data via the time frequency resources in the assignment.
37. The method of claim 35 , further comprising: processing pilot symbols based on a pilot pattern selected from among multiple pilot patterns.
38. An apparatus for wireless transmission in HRPD communication that supports spatial techniques, determines time frequency resources available for OFDM and excludes time frequency resources used for traffic data and signaling sent with CDM comprising: means for assigning the time frequency resources available for OFDM to at least one terminal and exchanges data with each terminal via the time frequency resources assigned to that terminal; means for receiving the assignment of time frequency resources selected among time frequency resources available for orthogonal frequency division multiplexing (OFDM) and excluding time frequency resources used for traffic data and signaling sent with code division multiplexing (CDM) that uses a slot structure that retains backward compatibility with existing terminals; and means for exchanging data via the time frequency resources in the assignment.
39. The apparatus of claim 38 , wherein the means for exchanging data comprises means for processing OFDM symbols based on multiple OFDM symbol numerologies to exchange data via the time frequency resources in the assignment.
40. The apparatus of claim 38 , further comprising: means for processing pilot symbols based on a pilot pattern selected from among multiple pilot patterns.
Unknown
June 25, 2013
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